Machine for making book-covers



(No Model.)

- 3 SheetsSheet 1. W. P. JACKSON.

MACHINE FOR MAKING BOOK COVERS. '1

f Patented-Oct'. I0, 1893.

WTNES 51:5-

' 3 SheetsSheet 2.

(No Model.)

w. P. JACKSON. MACHINE FOR MAKING BOOK COVERS.

No. 506,402. Patented Oct. 10, 1 93.

WTN iIE, 5:5

INVENTEI (No Model.) 3 Sheets-Sheet 3.

W. P. JACKSON. Y MAGHINB FOR MAKING BOOK 'OOVERS.

No. 506,402. j Patented'Oct. 10, 1893.

F Il3 7. I v

T112- EL K/V ITNEEEEEu- 4 INVENTEIRU UNITED STATES PATENT. Orrrcs.

WILLARD P. JAOKS ON, OF LYNN, MASSACHUSETTS.

MACHINE FOR MAKING BOOK-COVERS.

SPECIFICATION forming part of Letters Patent No. 506,402, dated October10, 1893.

Application fileclOctoher 14, 1892.

T0 alt whom it may concern:

Be it known that I, WILLARD P. JACKSON, a citizen of the United States,and a resident of Lynn, in the county of Essex and Commonwealth ofMassachusetts, have invented a new and useful Improvement in Machinesfor Making Book-Covers, of which the following is a specification.

In the art of book making, the covers are generally formed of a flexiblematerial such as leather, leatherette, or paper, which forms the outsidecover and is folded over and united with a stiffening of card-board orother suitable material, which forms the inside cover.

My invention relates to machines for performing the operations aboveindicated and consists of a vertically reciprocating male former, and afemale former, provided with horizontally adjustable and verticallymovable folding plates; and further of mechanism which operates upon thealternate downward movement of the male former to force the foldingplates inward over the female .former, in position to be struck by themale former and to be forced downward into the female former, and of thedevices and combi nations of devices hereinafter more specifically setforth and claimed. I

My invention is illustrated by the drawings herewith submitted, in whichFigure 1 is a top view of a female former, showing folding plates. Fig.2 is a front View of a machine embodying my invention. Fig. 3 is asectional view of a portion of the end of the cross head carrying themale former,.illustrating the arrangement of connected mechanism foradjusting the folding plates. Fig. 4 is a section along X X Fig. 2. Fig.5 is a partial end view. Fig. 6 is a reverse plan view of folding andguide plates, showing relative position of folding plate adjusted toreceive stroke of male former. Fig.

7 is a top view of folding plate and connected guide plate showingconnecting mechanism. Fig. 8 is a reverse view of same; Fig. 9, asectionon line y y, Fig. 7. I

Similar letters and figures of reference refer to similar partsthroughout the several views.

Referring to the drawings,'B represents the male former, which issecured to the cross- Serial N... 448,833. (No model.)

head D, to which vertically reciprocating mo tion may be imparted byseveral well known devices, which I consider it unnecessary to describeas they form no part of my invention. Immediately beneath the former B,is the female former A, mounted in a suitable table E, and movable alongtransverse ways on said table, so that it can be drawn out from underthe male former, by means of a handle K. I also provide a suitable stop,26, which stops the female former A immediately under the male former Bwhen pushed back.

I have shown in the drawings a preferred form of folding plates at a aa, (see Figs. 4, 6, 7, 8, and 9,) in each of which an end folding plateis united with a side folding plate forming a singular angular plate a,but this form of folding plate, although "convenient, is not anessential feature of my invention. The folding plates are renderedvertically movable and horizontally adjustable by the followingdescribed mechanism to which, however, I do not consider my inventionlimited.

Each of the folding plates at, a, a, a, is secured to a guide plate 1,substantially as follows: The guide plates 1, 1,1, 1, are provided withflanges 2, 2, 2, 2; through slots cut in saidrflanges extend theuprights 3, 3, 3, and 4,4, 4., 4,21. convenient form and arrangement ofwhich is shown in the drawings, Fig. 1, such arrangementgiving strengthto sustain pressure of the .plunger or male former, as hereinafterdescribed, and insuring a parallel vertical motion of the foldingplates. To

each of the uprights 3, 3, 3, is secured a spring 5, which is alsosecured to the guide plate 1. The action of the springs 5, 5, 5, 5, isto keep the folding plates 0., a, a, a,in contact with the bottom of theflanges 2, 2, 2, 2, on the guide plates 1, 1, 1. 1, the folding plates aa, a, a, being pressed downward against the tension of springs 5, 5, 5,5.

The length of the folding plates at, a, a, a, is

IOO

At the angle in each of the guide-plates, a bolt 6 is secured, formingequal angles with the sides, the bolt 6 is adapted to slide in a groovedplate 7, secured to the former A, the groove therein forming equalangles with the sides thereof. Each of the bolts 6 carries a pin 8,extending through a slot 10 in the plate 7, and a slot 9 in an arm of ashear lever O. to suitable supports on former A, and by the mechanismabove described, the opening and closing of said levers adjust thefolding plates or, a, a, a, said plates in their inwardoutward motionsremaining parallel to the edges of the former A. The springs 11, 11, 11,11, secured to the blades of the levers 0 act to open the same whenclosed as hereinafter described.

hen the operation of a machine embodying my invention is described, itwill be seen i that it is preferable to operate the shear levers C, C,by alternate downward strokes of the former I find a convenient form ofmechanism toaccomplish this result to be to provide each end of thecross-head D with a ratchet 12, mounted on a shaft 13 extending intosaid cross-head, inside of which substantially as shown in Fig. 3, it isconnected with a spring 16,against the tension of which itisdrawn outof-thecross-headD. Gentrallyplaced around theshaft 13, andseoured totheendof theerosshead D, is a double circular cam 14, the elevationsanddepressions in whichare one-hundred and eighty degreesapart. carries arigid projecting arm 15, provided with an inwardly projecting shoulderwhich bears against the cam 14, held in contact therewith by theactionof the spring16. -Secured to former A, or to the table E, is atpawl 17,which-engages with the ratchet 12 and at each reciprocation of theformer B imparts a quarter turn thereto. turned throughninetytdegreesipassesfrom an elevation to a depression in the cam let orvice-versa and a horizontally reciprocating motion .is thereby impartedto the shaft 13. The-shaft 13 carries, loose-mounted thereon,

ventsthe rotation thereof.

levers.

centrally placed on former Band not of suftficientsize to interfere withthe operation of i the folding plates. The plate bis brought'to a-solidhearing when raised flush with thef The function of the; plate?) is toflatten out and hold the stiffen-'3 ingduring the operation of thefolding plates.

surface of former B.

The lower part of thecross head D is provided with apertures 20, 20, 20,20, in which The shear levers O, O are pivoted Theshaft 13 The arm 15being cover, cut to the proper size, which must be larger than thefemale former A, is placed upon former A, and the machine set inoperation; the male former B falling presses the outside cover toconform to the female former A, thereby creasing and partially turningthe fold. When the former B rises,a pasted stiffening, or insidecover,is placed in the outside cover, and the former B-again failing, theratchet 12 having been given a quarter turn by the pawl 17, the fork 18strikes the ends of the levers C, G, and closes the-same, therebyclosing the folding plates at, a, a, a,which turn in the fold, and theformer B, falling on the uprights 3, 3,and 4, t,forces the foldingplates a, (t, a, a, downward and presses out the fold which is united tothe stiffening by adhesive material placed thereon as hereinbeforedescribed, the plate 1) acting to 'holdthestiffening during theoperationof the folding plates. It will be noted that the plate I) also, bybringing the stiffening to an even surface, prevents the catching .ofthe folding plates. The machine may be provided with suitable stoppingand starting mechanism, and the former Adrawn out by the handleK betweenthe-successive operations of the machine.

Lam aware that lhorizontaliy acting folding plates have beenusedonmechanisms for similar purposes, but

I claim as my invention and desire to secure by Letters Patent- 1. In amachine for making book-covers, the combination of a verticallyreciprocating male former, a female former, a series of guide platessupported in suitable bearings, a series of folding plates connected to,and horizontally movable with, the 1 guide plates, means for impartinghorizontal, parallel motion to the guide and folding plates, and meanswhereby the folding .plates may be moved vertically 'in relation to theguide plates, all substantially asdescribed.

2. In a machine for making book-covers, the combination of a verticallyreciprocating male former, a female former, fold ing plates on thefemale former, means for adjusting the folding plates horizontallyimeans where- .by the folding plates may be moved vertieally, andmechanism :to adg' ustthe folding the combination :of -averticallyreciprocatin g tmale former-,aifemale for-mega seriesofhorizontally movable guide plates supported in suitable bearings, aseries of verticallymovable folding plates carried thereby, and up ICCIIC

rights, mounted on the folding plates and extending above the guideplates which receive the downward stroke of the male former, and forcethe folding plates into the female formers, all substantially asdescribed.

4:. In a machine for making book-covers, the combination of a verticallyreciprocating male former, a female former, a series of horizontallymovable guide plates supported in suitable bearings, a series ofvertically movable folding plates carried thereby, uprights, mounted onthe folding plates and extending above the guide plates, which receivethe downward stroke of the male former, and force the folding platesinto the female former, and a yielding plate carried by the male formerand extending below the lower surface there-' of, acting to hold thematerial in the female former during the operation of the foldingplates; all substantially as described.

5. In a machine for making book-covers,

WILLARD P. JACKSON.

Witnesses:

MAMY O. PARTRIDGE, WILLIE C. WILMoT.

